<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="http://localhost:8080/07_servlet/servlet1" method="post">
    用户名：<input type="text" name="username"><br/>
    密码：<input type="password" name="password"> <br/>
    性别：<input type="radio" name="sex" value="mela">男 <input type="radio" name="sex" value="female">女 <br/>
    兴趣爱好：<input type="checkbox" name="hobby" value="cpp">c++
    <input type="checkbox" name="hobby" value="java">java
    <input type="checkbox" name="hobby" value="php">php <br/>
    <input type="submit">
</form>
</body>
</html>